Australian Solid Green Opal Silver Ring. Origin: Mintabie Coober Pedy South Australia. The item "Australian Solid Green Opal Silver Ring" is in sale since Tuesday, January 5, 2021. This item is in the category "Jewellery & Watches\Fine Jewellery\Rings". The seller is "australstones" and is located in 2-10 Darling Drive, Darling Harbour, NSW.This item can be shipped worldwide.